Data Storage Controller Dump Region Health Monitoring
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Solution Overview
Problem
Data storage apparatuses face reliability issues due to sudden power loss (SPL), which can result in data loss or corruption, and existing solutions for data loss protection (PLP) operations are not effectively managed.
Innovation Solution
A data storage apparatus with a nonvolatile memory device featuring a dump region for temporary data storage during power loss, and a controller that monitors health information of the dump region, generates environmental information for PLP operations, and shares this information with external devices to manage data processing effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dump region is used to temporarily store data during power loss, then data loss protection is improved, but device complexity increases due to additional monitoring and management requirements
Solution Approach 1:
The controller performs preliminary actions by monitoring the health information of the dump region in advance before power loss occurs. This allows the system to proactively assess the availability and status of the dump region, generate appropriate environmental information, and prepare for potential power loss scenarios, thereby improving data loss protection without reacting only after the problem occurs.
Solution Approach 2:
The controller implements a feedback mechanism by continuously monitoring the health information of the dump region and using this information to generate environmental information that is shared with external devices. This feedback loop enables the system to adapt its data loss protection operations based on the actual state of the dump region, improving reliability while managing complexity through intelligent control.
2Reliability
If health information monitoring is implemented for the dump region, then data integrity is improved, but loss of time increases due to continuous monitoring operations
Solution Approach 1:
The controller performs health information monitoring of the dump region at periodic intervals rather than continuously. This periodic action allows the system to maintain data integrity through regular assessments while minimizing the time consumed by monitoring operations, thus resolving the contradiction between reliability improvement and time loss.
3Adaptability or versatility
If environmental information is shared with external devices, then adaptability is improved, but device complexity increases due to communication overhead
Solution Approach 1:
The controller generates and shares environmental information that reflects the health status and operational parameters of the dump region. By changing and communicating these parameters to external devices, the system enables external devices to adapt their operations based on the actual state of the storage apparatus, improving adaptability while managing communication complexity through standardized parameter exchange.
Data Source
AI summary
A data storage apparatus includes a nonvolatile memory device including a dump region configured to temporarily store data according to a state of applied power; and a controller configured to monitor health information of the dump region of the nonvolatile memory device, generate environmental information corresponding to a power loss protection (PLP) operation based on the health information, and share the environmental information with an external device.